AW: Creator 3 D Framebuffer on Sun Ulta 1: XFree resolution and refresh rate settings
Hi folks,
resolution can be set via OBP:
ok setenv output-device screen:r1280x1024x76
after STOP A is your friend!
Take care
Dieter
--
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HARMAN BECKER AUTOMOTIVE SYSTEMS
Dr.-Ing. Dieter Jurzitza
Manager Hardware Systems
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> -----Ursprüngliche Nachricht-----
> Von: Jon Leonard [mailto:jleonard@oasis.slimy.com]
> Gesendet: Mittwoch, 20. April 2005 15:53
> An: Sebastian Niehaus
> Cc: debian-sparc@lists.debian.org; Jon Leonard
> Betreff: Re: Creator 3 D Framebuffer on Sun Ulta 1: XFree
> resolution and refresh rate settings
>
>
> On Wed, Apr 20, 2005 at 01:21:39PM +0200, Sebastian Niehaus
> wrote: [snip]
> > The maschine: Sun Ultra 1, Creator 2D graphic card. Prolem:
> cannot set
> > XFree resolution and refresh rate in /etc/X11/XF86Config-4 using
> > "sunffb"
> >
> > *Google*
> >
> > Found http://www.sunhelp.org/faq/FrameBuffer.html so I have
> to set the
> > frame buffers parameters at a different place.
>
> That looks fairly Solaris-specific.
>
> > http://www.sunhelp.org/faq/FrameBuffer.html#99 says
> 1020x800 at 85 Hz
> > would be okay for any Creator 3D so I issued
>
> Should be fine. The limit would be the speed of the RAMDAC
> (250 MHz, IIRC). The design target resolution was
> 1280x1024x66Hz, so your smaller/faster mode should fit.
>
> > | plasmatic:/# eeprom output-device=screen:r1024x800x85m
> >
> > After reboot nothing seems to have changed, my monitor's on screen
> > display reports a refresh rate of 66 Hz which basically sucks.
>
> Rebooting to Xfree86? That probably doesn't care about the
> eeprom setting.
>
> > ,----
> > | plasmatic:/home/niehaus# eeprom |grep output
> > | output-device=screen:r1024x800x85m
> > | plasmatic:/home/niehaus#
> > `----
> >
> > My command must have had *some* effect: the parameters have been
> > stored in the eeprom.
> >
> >
> > What am I doing wrong? Any hints?
>
> I'm guessing that your X server is grabbing the modeline (or
> equivalent) from somewhere other than that eeprom. You might
> test that by going to the boot prom and checking what your
> monitor reports then, or maybe booting Solaris.
>
> Jon Leonard
>
>
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